private static AlgorithmIdentifier decodeSignatureAlgorithm(byte[] encodedSignatureAlgorithm)
{
Asn1StreamParser asn1StreamParser = new Asn1StreamParser(encodedSignatureAlgorithm);
DerSequenceParser asn1SequenceParser = (DerSequenceParser)asn1StreamParser.ReadObject();
Asn1Object subjectPublicKeyInfoAsnObject = (Asn1Object)asn1SequenceParser.ToAsn1Object();
return(AlgorithmIdentifier.GetInstance(subjectPublicKeyInfoAsnObject));
}
private static SubjectPublicKeyInfo decodeSubjectPublicKeyInfo(byte[] encodedSubjectPublicKeyInfo)
{
Asn1StreamParser asn1StreamParser = new Asn1StreamParser(encodedSubjectPublicKeyInfo);
DerSequenceParser asn1SequenceParser = (DerSequenceParser)asn1StreamParser.ReadObject();
Asn1Object subjectPublicKeyInfoAsnObject = (Asn1Object)asn1SequenceParser.ToAsn1Object();
return(SubjectPublicKeyInfo.GetInstance(subjectPublicKeyInfoAsnObject));
}
private static AsymmetricKeyParameter decodePublicKeyParameter(byte[] encodedSubjectPublicKeyInfo)
{
Asn1StreamParser asn1StreamParser = new Asn1StreamParser(encodedSubjectPublicKeyInfo);
DerSequenceParser asn1SequenceParser = (DerSequenceParser)asn1StreamParser.ReadObject();
Asn1Object subjectPublicKeyInfoAsnObject = (Asn1Object)asn1SequenceParser.ToAsn1Object();
SubjectPublicKeyInfo subjectPublicKeyInfo = SubjectPublicKeyInfo.GetInstance(subjectPublicKeyInfoAsnObject);
return(PublicKeyFactory.CreateKey(subjectPublicKeyInfo));
}
